# Boost.GIL (Generic Image Library) - tests
#
# Copyright (c) 2018 Mateusz Loskot <mateusz@loskot.net>
# Copyright (c) 2018 Dmitry Arkhipov
#
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or
# copy at http://www.boost.org/LICENSE_1_0.txt)

import os ;
import path ;
import regex ;

rule generate_self_contained_headers ( headers_subpath * : exclude_subpaths * )
{
    # On CI services, test the self-contained headers on-demand only to avoid build timeouts
    # CI environment is common for Travis CI, AppVeyor, CircleCI, etc.
    # For example:
    # if ! [ os.environ CI ] || [ os.environ TEST_HEADERS ] {
    #    alias self_contained_headers : [ generate_self_contained_headers ] ;
    # }

    local targets ;

    # NOTE: All '/' in test names are replaced with '-' because apparently
    #       test scripts have a problem with test names containing slashes.

    local top_headers_path = [ path.make $(BOOST_ROOT)/libs/gil/include/boost/gil ] ;

    for local file in [ path.glob-tree $(top_headers_path)/$(headers_subpath) : *.hpp : $(exclude_subpaths) ]
    {
        local rel_file = [ path.relative-to $(top_headers_path) $(file) ] ;
        local target_name = [ regex.replace h/$(rel_file) "/" "-" ] ;
        local target_name = [ regex.replace $(target_name) "\.hpp" "" ] ;
        targets += [
            compile $(BOOST_ROOT)/libs/gil/test/headers/main.cpp
            : <define>"BOOST_GIL_TEST_HEADER=$(rel_file)" <dependency>$(file)
            : $(target_name)
        ] ;
    }

    return $(targets) ;
}

# TODO: Review sorting to get as close as possible from general to specific

# Core
alias concepts : [ generate_self_contained_headers concepts ] ;
alias core : [ generate_self_contained_headers : concepts extension io ] ;
alias io : [ generate_self_contained_headers io : concepts extension ] ;

# Extensions
alias extension/dynamic_image : [ generate_self_contained_headers extension/dynamic_image ] ;
alias extension/io : [ generate_self_contained_headers extension/io ] ;
alias extension/numeric : [ generate_self_contained_headers extension/numeric ] ;
alias extension/toolbox : [ generate_self_contained_headers extension/toolbox ] ;